Vol 45, No 3 (2007)
Original paper
Submitted: 2011-12-19
Published online: 2007-10-24
Expression of E-cadherin, beta-catenin and Ki-67 antigen and their reciprocal relationships in mammary adenocarcinomas in bitches.
Marcin Nowak, Janusz A Madej, Piotr Dziegiel
Folia Histochem Cytobiol 2007;45(3):233-238.
Vol 45, No 3 (2007)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2007-10-24
Abstract
In progression of tumours, resulting from, i.e., release of cells from the parental tumour and development of metastases, expression of cell adhesion molecules (CAM) plays a significant role. CAM, including E-cadherin and the linked to it beta-catenin, determine the extent of adhesion between normal and neoplastically altered cells. Moreover, the unbound form of beta-catenin in a cell nucleus may affect the rate of cell proliferation This study aimed at demonstrating intensity and localisation of E-cadherin and beta-catenin expression as related to expression of the proliferation-associated antigen, Ki-67 in mammary adenocarcinomas of bitches. The study was performed on 35 cases of the above mentioned tumours. On paraffin sections immunohistochemical reactions were performed using monoclonal antibodies directed against E-cadherin, beta-catenin and Ki-67 antigen. In the studies a membranous expression of E-cadherin, a cytoplasmic-nuclear expression of beta-catenin and nuclear expression of Ki-67 antigen were demonstrated. Statistical calculations using Spearman's test demonstrated a pronounced positive correlation between expression of beta-catenin and Ki-67 antigen and absence of correlation between expression of E-cadherin and Ki-67 antigen. No correlation could be detected between expression intensities of E-cadherin and beta-catenin.
Abstract
In progression of tumours, resulting from, i.e., release of cells from the parental tumour and development of metastases, expression of cell adhesion molecules (CAM) plays a significant role. CAM, including E-cadherin and the linked to it beta-catenin, determine the extent of adhesion between normal and neoplastically altered cells. Moreover, the unbound form of beta-catenin in a cell nucleus may affect the rate of cell proliferation This study aimed at demonstrating intensity and localisation of E-cadherin and beta-catenin expression as related to expression of the proliferation-associated antigen, Ki-67 in mammary adenocarcinomas of bitches. The study was performed on 35 cases of the above mentioned tumours. On paraffin sections immunohistochemical reactions were performed using monoclonal antibodies directed against E-cadherin, beta-catenin and Ki-67 antigen. In the studies a membranous expression of E-cadherin, a cytoplasmic-nuclear expression of beta-catenin and nuclear expression of Ki-67 antigen were demonstrated. Statistical calculations using Spearman's test demonstrated a pronounced positive correlation between expression of beta-catenin and Ki-67 antigen and absence of correlation between expression of E-cadherin and Ki-67 antigen. No correlation could be detected between expression intensities of E-cadherin and beta-catenin.
Title
Expression of E-cadherin, beta-catenin and Ki-67 antigen and their reciprocal relationships in mammary adenocarcinomas in bitches.
Journal
Folia Histochemica et Cytobiologica
Issue
Vol 45, No 3 (2007)
Article type
Original paper
Pages
233-238
Published online
2007-10-24
Page views
1679
Article views/downloads
1495
Bibliographic record
Folia Histochem Cytobiol 2007;45(3):233-238.
Authors
Marcin Nowak
Janusz A Madej
Piotr Dziegiel